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Assertion: Lowering of vapour pressure is directly proportional to osmotic pressure of the solution. Reason: Osmotic pressure is a colligative property.
An azeotropic solution of two liquids has boiling point lower than either of them when it
Given below are few mixtures formed by mixing two components. Which of the following binary mixtures will have same composition in liquid and vapour phase? (i) Ethanol + Chloroform (ii) Nitric acid + Water (iii) Benze…
Which one is a colligative property?
Vapour pressure of a pure liquid X is 2 atm at 300 K. It is lowered to 1 atm on dissolving 1g of Y in 20g of liquid X. If molar mass of X is 200, what is the molar mass of Y?
In three beakers labelled as (A), (B) and (C), 100 mL of water, 100 mL of 1M solution of glucose in water and 100 mL of 0.5 M solution of glucose in water are taken respectively and kept at same temperature. Which of …
100 ml of a liquid A was mixed with 25 ml of a liquid B to give a non-ideal solution of A-B mixture. The volume of this mixture would be
Which of the following graphs represent the behavior of ideal binary liquid mixture?
Addition of a non-volatile solute causes lowering in vapour pressure of a solvent from 0.8 atm to 0.2 atm. What is the mole fraction of solvent?
Vapour pressure of a solution of non-volatile solute is
The vapour pressure of benzene at a certain temperature is 640 mm of Hg. A non-volatile electrolyte solute weighing 2.175 g is added to 30.08 g of benzene. If the vapour pressure of the solution is 600 mm of Hg, what …
An ideal solution is formed when its constituents
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25ºC. It forms and ideal solution with ‘B’ in which mole fraction of A is 0.8. If the vapour pressure of the solution is 84 mm of Hg at 25ºC, the vapour pressure of pure ‘…
In a solution of 7.8 g of benzene (C₆H₆) and 46 g of toluene (C₆H₅CH₃), the mole fraction of benzene is
18 g glucose (C₆H₁₂O₆) is added to 178.2 g water. The vapour pressure of water (in torr) for this aqueous solution is:
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at – 6ºC will be (Kf for water = 1.86 K kg mol–1. and molar mass o…
The vapour pressures of two liquids A and B in their pure states are in the ratio of 1: 2. A binary solution of A and B contains A and B in the mole proportion of 1: 2. The mole fraction of A in the vapour phase of th…
The temperature at which 10% aqueous solution (w/V) of glucose will exhibit the osmotic pressure of 16.4 atm, is (R = 0.082 dm3 atm K–1 mol–1)
Which statement is incorrect about osmotic pressure (), volume (V) and temperature (T)?
What would happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?
A solution of urea (mol. mass 56 g mol–1) boils at 100.18ºC at the atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol–1 respectively, the above solution will freeze at
A solution of acetone in ethanol
A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows (KCET 2011)
Which statement is incorrect about osmotic pressure (), volume (V) and temperature (T)?
The system that forms maximum boiling azeotrope is